Handle for tools.



PATENTED JULY 24, 1906.

R. SHAILER. HANDLE FOR TOOLS.

APPLICATION FILED AUG.'25, 1904 I'li'll MM/um UNITED STATES PATENTOFFICE.

A RUSSELL H. SHAILER, ()FFORESTVILLE, CONNECTICUT.

' HANDLE FOR TOOLS.

Specification of Letters Patent.

Patented July 24, 1906.

To all whom it may concern:

Be it known that I, RUssELL H. SHAILER, a citizen of the United Statesof America, residing at Forestville, in the county of Hartford and Stateof Connecticut, have invented certain new and useful Improvements inHandles for Tools, of which the following is a specification.

1 This invention relates to a novel means of attaching a handle to atool, such as a screwdriver or the like.

Figure 1 is a general side view of a tool embodying my invention, someparts being shown in section and the cap being removed from the end ofthe handle. Fig. 2 is a bottom view of the cap. Fig. 3 is an end view ofthe handle with the cap removed. Fig. 4

is a view of the end of the handle, shown partly in section, with thecap secured in place.

Referring to the drawings, there is the usual handle a, centrallypierced, as at b, to receive the shank c of the tool (1. The end of theshank is slightly cupped, as at 6, its walls terminating in a thin edge,as at f, and gradually increasing in thickness toward the bottom of thecupping. A metallic cap g has centrallyarranged recess h to take overthe cup end of the shank, said recess having a flat bottom and undercutwalls i. Endwise displacement of the handle in the shank is prevented bythe pin a, which passes through the handle and shank. After fitting thecap onto the end of the shank a blow spreads the end of the shank intothe undercut of the recess in the cap, the bottom of said recess actingas an anvil to spread the end of the shank. The recess is undercut, andthe end of the shank is cupped only to a slight extent. Only a smallamount of spreading is necessary in order to secure the cap to the shankso that it will not come loose, and when this spreading has beenaccomplished a substantially solid surface of the shank is in contactwith the bottom of the recess in the cap, which prevents any furthersplitting or spreading of the shank, which would be injurious to the capand to the handle.

In the use of devices to which this invention may be applied it very freuently happens that blows are struck on t e cap by a hammer or mallet,and were it not for the fact that as soon as a sufficient amount ofspreading of the end of the shank occurs to lock it and the captogether, the two solid surfaces on the cap and shank bringing upagainst one another, the-splitting or spreading action of the shankmight continue to the eventual ruination of the handle. The cap isshaped to fit the end of the handle, so as to present a smooth surface.

In order to prevent the handle turning, I slab it off on one or moresides, as shown at k in Fig. 3, and shape the cap correspondingly, asshown at Z in Fig. 2, to lit the end of the handle. The constructionhereinabove described is the one preferred.

I claim as my invention 1. In an article of the character described thehandle centrally pierced, the tool having a solid shank fitting in andpassing through said handle, the end of said shank being slightlycupped, and a cap having a recess to receive said shank, the side wallsof said recess being undercut near the bottom thereof whereby under theforce of a blow on the cap the cupped end of the shank is spread intothe undercut portion of the recess and substantial solid surfaces on theshank and cap are brought into contact with one another, substantiallyas described.

2. In an article of the character described the handle centrallypierced, the tool having a solid shank fitting in and passing throughsaid handle, the end of said shank being slightly cupped with its wallsterminating in a thin edge, and a cap having a recess to receive thecupped end of said shank, the side walls of said recess being slightlyundercut and. the bottom thereof flat, whereby under the force of a blowon the cap the walls of the cupped end of the shank are spread to engagethe undercut portion of the recess and substantial solid parts of thecap and shank being brought into contact after said spreading hasoccurred.

In testimony whereof I afiix my signature in presence of two witnesses.

RUSSELL H. SHAILER.

Witnesses:

H. E. HART, D. I. KBEIMENDAHL.

